Click Here for More Images from iStock- 15% off with coupon 15FREEIMAGES 
Diffuse large B-cell lymphoma, or DLBCL, is a cancer that starts in white blood cells called lymphocytes.
The Raf/MEK/ERK (MAPK) propagates growth signals in the cell. Misregulation can lead to cancer.\nThe red dots on the active EGFR are phosphorylated tyrosines. PDB entries: 1egf, 1nql, 1m17, 2jwa, 3njp, 2gs6, 1gri, 1xd2, 3ksy, 5p21, 6xi7, 6q0j, 2y4i,
Backgrounds of Bacteria and Mold under the microscope in Lab.
flower bud of lilium brownii var. viridulum T.S. on microscopy
Microalgae under microscopic view, green algae, cyanobacteria, phytoplankton, diatom, algae mix collage background
Photomicrograph of a freshwater clustering single-celled green algae,
Close up of cristal beads
Colorful, abstract micrograph of a fish scale, calico bass,Paralabrax clathratus, with polarization at 100x.
Epidermis. Electron microscope micrograph showing a keratinocyte of spinous layer. The epithelial cell has a polygonal shape, central nucleus with nucleolus, cytoplasm full of keratin filament bundles, and numerous dark desmosomes crossing the intercellular spaces.
Particles, medical concept
Coxsackie virus internal structure, 3d illustration set isolated on white
plant Zea Stem C.S. under light mircoscope with white background
False color image of diatom under the microscope
Antibodies conjugated with drugs at the FC region are designed to attach a drug to the FC region of the antibody. This technology leverages the specificity of antibodies to deliver the drug directly to target cells. As a result, it can enhance the drug's effectiveness and reduce side effects. This approach is particularly promising in cancer treatment and therapies for autoimmune diseases.\n\nThis image was not created by AI.
Licmophora sp. algae, marine and freshwater diatom under microscopic view. Genus of benthic, photosynthetic and epiphyte diatom
Slice Of Crystal Agate
Microscopic image of onion root tip cells undergoing mitosis. Anaphases and metaphases. 1000x magnified
Close-up shot of a petri dish for checking an antibiotic in the laboratory.
Epidermal growth factor (EGF) activates the EGF receptor (EGFR), that builds a heterodimer with HER3.  The signal transduction continues through GRB2/SOS, Ras,  Raf/MEK and ERK, that will activate many processes in the cell. Dysregulation is linked to cancer progression
Different types in cell development glass dishes on desk. Group of Petri dishes with different culture media and micro organisms grown.
Background of mold in the wood of the house.
Squash preparation of  onion root tip cells stained to reveal chromosomes,  Bright field illumination, light microscopy.  This image was taken with the X40 objective lens.  Depth of focus is extremely low at this magnification.  Smaller apertures give greater depth of focus, but image quality deteriorates and resolution is greatly reduced.  The aperture in this image was optimised for contrast and resolution. Chromatic abberation is inevitable in light microscopy, but has been kept to a minimum in this image.
Gram stain of the bacterium, Staphylococcus aureus. This bacteria is gram positive, as such it appears purple after staining due to the thick peptidoglycan. The round cells are also seen in clusters.
Blastomycosis is a fungal infection caused by inhaling Blastomyces dermatitidis spores. If it involves only the lungs, it is called pulmonary blastomycosis. Only about half of people with the disease have symptoms, which can include fever, cough, night sweats, muscle pains, weight loss, chest pain, and feeling tired.
Colonies of pathogenic bacteria in a Petri dish, microbiological studies
Close-up shot of a petri dish for checking an antibiotic in the laboratory.
Microscope photo of a sambucus stem with parenchyma cells.
Photomicrograph of filamentous blue-green algae, Oscillatoria species. Each band along the stand is one cell. This filament is very short probably having recently parted from a longer one. Filaments are typically many times longer. This algae is mobile, it moves and twists through the water. San Francisco Bay, California, USA. Live specimen. Wet mount, 40X objective, transmitted brightfield illumination. Note - motion blur of live specimen, very shallow depth of field, chromatic aberration and uneven focus are inherent in light microscopy.
Epidermal growth factor (EGF) activates the EGF receptor (EGFR), that dimerizes. Red dots are phosphorylated tyrosines. The signal transduction continues through GRB2/SOS, Ras,  Raf/MEK and ERK, that will activate many processes in the cell.
corn stem micrograph with dye
Free Images: "bestof:120-cell t01 A2.svg en 600-cell family polytopes in A2 en Coxeter plane symmetry own 11/6/10 self Truncated 120-cell; Coxeter plane graphs 120-600-cell family;"
Newton-lplane-Mandelbrot-smooth.jpg
CoA medici Florence Palazzo Vecchio.jpg
Prince Condé 1814 Deseine Chantilly.jpg
Relief CoA kings of Spain church Nuestra Senora de las Angustias, Granada, Spain.jpg
Holy family Sassoferrato Condé Chantilly.jpg
Leucippus fallax.jpg
Leucippus fallax in Isla Margarita.jpg
Sarcophage Baptistère Florence.jpg
Gotthard-IR in der Biaschina.jpg
Building Gloria Door in São Paulo center.jpg
Tomb plaque kings John I and Christian II Danemark Sankt Knut cathedral Denmark.jpg
Jerusalem Oesterreichisches Hospiz.JPG
HollyMonument.jpg
Pieter_Brueghel_the_Elder_-_The_Dutch_Proverbs_-_Google_Art_Project.jpg
Avior plane in Maiquetia Airport.jpg
rabbit-deilenaar-rabbit-family-415774.jpg
airport-plane-flight-278052.jpg
Off loading float plane.jpg
Family walk in wildness.jpg
People beside transport float plane.jpg
Plane taking of from airport.jpg
Buffon's plane tree winter MNHN.jpg
Conviasa plane in Maiquetia Airport.jpg
Pompeii family funerary niches.jpg
Family in canoe on lake.jpg
airport-the-plane-landing-613835.jpg
Plane on the water photographed from behind.jpg
Mountain joy homestead wellstead family.jpg
Floatplane airplane flying over water.jpg
Float transportation aircraft on lake.jpg
Flyint to fire in forest.jpg
Plane flying over ship on ocean.jpg
House_on_a_Tobacco_Plantation.jpg
Armoiries breteuil relief.jpg
People feeding fish.jpg
Family recreation at lake in boat.jpg
Person on river with small plane in background.jpg
Family enjoys a perfect day at the beach.jpg
Family fishing from a bridge at a local pond.jpg
Family recreational boating and fishing on lake.jpg
Happy family outdoor observes a shucked oyster.jpg
Person stands near small plane on lake.jpg
Fire burn in forest from plane.jpg
plane-flying-commercial-aircraft-1214387.jpg
plane-flying-commercial-aircraft-1214383.jpg
plane-embraer-190-ar-1359202.jpg
plane-travel-landing-gear-airport-188770.jpg
aircraft-airport-yak-52-891426.jpg
plane-airbus-saudia-takeoff-1254387.jpg
incheon-international-airport-plane-680402.jpg
plane-runabout-private-jet-airport-1051805.jpg
gran-canaria-airport-air-fly-495788.jpg
Man women and girl family together.jpg
Family enjoys strolling on the paths at the park.jpg
Family enjoys views of the water from a wooden catwalk.jpg
Family takes the time to enjoy nature through camping.jpg
innsbruck-austria-airport-mountains-106723.jpg
qatar-airways-cargo-boeing-777-867777.jpg
diamond-da40-aircraft-airplane-718524.jpg
aircraft-double-decker-oldtimer-1523606.jpg
plane-airplanes-aircraft-1004914.jpg
Finnair A320 at Kittilä Airport.jpg
Fireman crews ready to board on large plane to fly to location to fight wildfires.jpg
Drought_refugees_from_Oklahoma_camping_by_the_roadside..jpg
plane-aviation-airport-classic-881073.jpg
fighter-plane-aeroplane-950906.jpg
airplane-plane-airport-travel-1143455.jpg
Japanese Squirrel edit2.jpg
CoA Louis XIV Golden Gate Versailles.jpg
Armes Calvimont Château Herm.jpg
flyer-start-take-off-1359867.jpg
aircraft-airport-departure-travel-1515439.jpg
helicopter-ski-mountain-top-1248893.jpg
Ptuj Town Hall.jpg
Leucanthemum paludosum May 2008.jpg
Port of Taganrog.jpg
Hellenistic gravestone archmus Heraklion.jpg
Arrow Jacques Joubert des Ouches Utah Beach Calvados.jpg
GRBs detected by Swift, 2004-2015.jpg
aircraft-airport-po-2-radial-engine-891427.jpg
Damselfly September 2007 Osaka Japan.jpg
Damselfly in autumn.jpg
Alferaki Palace edit.jpg
Ischnura senegalensis October 2007.jpg
Ischnura senegalensis August 2008.jpg
Vinci self portrait Florence.jpg
Relief COA Habsbourg Lorraine fiacre Vienne.jpg
Barque abandonnée Île aux Moines, Morbihan, France.jpg
Manuel_Pinto_Februray_2015-1a.jpg
Damselfly October 2007 Osaka Japan.jpg
Armoiries famille De Bastard porte Château de Hautefort 7.jpg
Relief of CoA après incendie hôtel Lambert Paris.jpg
Operation_Soccer_Craze_DVIDS302758.jpg
Operation_Soccer_Craze_DVIDS302760.jpg
U.S. Navy Band visits Pittsburg, Kan. 161026-N-LC494-038.jpg
8-cell-simple.gif
Corner arches, Patio de los Leones, Alhambra, Granada, Spain.jpg
Votive relief NAMA3952.jpg
Pedestal CoA Niels Juel statue Copenhagen.jpg
US_Navy_061120-N-1328C-213_Lt._Cmdr._Wendy_Halsey_from_Honolulu,_Hawaii,_plays_in_a_soccer_game_at_the_Djibouti_Boy's_Orphanage_in_Djibouti_City,_Djibouti._Halsey's_friends_and_family_collected_more_than_300_soccer_balls.jpg
Terms of Use   Search of the Day